No you are not crazy!
I can totally relate to your situation.
I have a 14 year old and she keeps telling me to “chill” and what’s wrong with you …
I am aware that i have been more irritable and sometimes lack the patience to deal with her ( doesn’t help that she loses stuff , forgets things to do and general house rules and thinks she knows best ..) that started in peri and continuing in meno
as only recently started hrt and still experiencing most of the symptoms apart from the flushes .
I wish i had started doing something about it in peri , so you are lucky you can adress your symptoms early on.
Hormones play such a huge role in the female behaviour, i have noticed that we only “fight” before her cycle as she herself is like another person then , irritable , gets annoyed and her attitude combined with my issues is a disaster .
I can see all the pms symptoms .
20 is a more mature age and you should be able to talk to her , finding the right time .
It’s great your partner he’s supportive .
You said you are trying to get your hormones balanced , do u want to share what you are doing or taking ?